Through her online fitness empire Bodies By Rachel, Dillon is a personal trainer to hundreds of women across the world with more than 339,000 Instagram followers.

Dillon said she did 12 weeks of preparation in the lead-up to the show.

"I have had an extremely healthy and balanced prep," she said. "Nothing in my life stopped. I ran my business, travelled for my sponsors and kept family and friends a priority. I was happy and stayed true to who I am. This is very important whilst prepping."